    //package com.yuan.blogsystem.config;
    //
    //
    //import com.fasterxml.jackson.databind.DeserializationFeature;
    //import com.fasterxml.jackson.databind.ObjectMapper;
    //import com.fasterxml.jackson.databind.module.SimpleModule;
    //import com.fasterxml.jackson.databind.ser.std.ToStringSerializer;
    //import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateDeserializer;
    //import com.fasterxml.jackson.datatype.jsr310.deser.LocalDateTimeDeserializer;
    //import com.fasterxml.jackson.datatype.jsr310.deser.LocalTimeDeserializer;
    //import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateSerializer;
    //import com.fasterxml.jackson.datatype.jsr310.ser.LocalDateTimeSerializer;
    //import com.fasterxml.jackson.datatype.jsr310.ser.LocalTimeSerializer;
    //
    //import java.math.BigInteger;
    //import java.time.LocalDate;
    //import java.time.LocalDateTime;
    //import java.time.LocalTime;
    //import java.time.format.DateTimeFormatter;
    //
    //import static com.fasterxml.jackson.databind.DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES;
    //
    //
    ///**
    // * @program: blog-system
    // * @description:
    // * @author: yuan_boss
    // * @create: 2022-12-23 10:51
    // **/
    //
    ///**
    // * 对象映射器:基于jackson将Java对象转为json，或者将json转为Java对象
    // * 将JSON解析为Java对象的过程称为 [从JSON反序列化Java对象]
    // * 从Java对象生成JSON的过程称为 [序列化Java对象到JSON]
    // */
    //public class JacksonObjectMapper extends ObjectMapper {
    //
    //    public static final String DEFAULT_DATE_FORMAT = "yyyy-MM-dd";
    //    public static final String DEFAULT_DATE_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss";
    //    public static final String DEFAULT_TIME_FORMAT = "HH:mm:ss";
    //
    //    public JacksonObjectMapper() {
    //        super();
    //        //收到未知属性时不报异常
    //        this.configure(FAIL_ON_UNKNOWN_PROPERTIES, false);
    //
    //        //反序列化时，属性不存在的兼容处理
    //        this.getDeserializationConfig().withoutFeatures(DeserializationFeature.FAIL_ON_UNKNOWN_PROPERTIES);
    //
    //        SimpleModule simpleModule = new SimpleModule()
    //                //将BigInteger型数字转换成字符串,避免丢失精度
    //                .addSerializer(BigInteger.class, ToStringSerializer.instance)
    //                //将Long型数字转换成字符串,避免丢失精度
    //                .addSerializer(Long.class, ToStringSerializer.instance)
    //                //将Integer型数字转换成字符串
    //                .addSerializer(Integer.class, ToStringSerializer.instance)
    //                //将int型数字转换成字符串
    //                .addSerializer(int.class, ToStringSerializer.instance)
    //                //将long型数字转换成字符串
    //                .addSerializer(long.class, ToStringSerializer.instance)
    //                //序列化和反序列化日期格式
    //                .addDeserializer(LocalDateTime.class, new LocalDateTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)))
    //                .addDeserializer(LocalDate.class, new LocalDateDeserializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)))
    //                .addDeserializer(LocalTime.class, new LocalTimeDeserializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)))
    //                .addSerializer(LocalDateTime.class, new LocalDateTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_TIME_FORMAT)))
    //                .addSerializer(LocalDate.class, new LocalDateSerializer(DateTimeFormatter.ofPattern(DEFAULT_DATE_FORMAT)))
    //                .addSerializer(LocalTime.class, new LocalTimeSerializer(DateTimeFormatter.ofPattern(DEFAULT_TIME_FORMAT)));
    //
    //
    //        //注册功能模块 例如，可以添加自定义序列化器和反序列化器
    //        this.registerModule(simpleModule);
    //    }
    //}
